Le Gros Cron de Lahage: an impressive geological formation
Woodland, nature reserve or natural area
This singular rock owes its geologic quality to its formation process. The Grand Cron de Lahage is a remarkable protected site, with an impressive 20 metres height.
This cron is made of many layers of calcareous tuff. Pasty to start with, they became a hard but porous rock with time. This kind of stone was used in the region for chimneys, vaults, indoor walls, mill wheels.
A slow formation
Spring water, falling on the Cron de Lahage, helped the moss to react and calcify: the limestone in the water sipped into the moss and extremely slowly turned it into stone.
You may have heard Belgium has recently faced torrential rain, causing dramatic floods. Many regions have been touched by this natural catastrophe. We are doing our best to help all travellers coming to Wallonia. Some sites are, as you can understand, not accessible for the time being. Please contact them or check their website/social media platforms before getting on the road. Be assured we are all trying to get things back to order as soon as possible. Travel advice
This information is given for indication purposes only, best to check with the site you hope to visit before heading there - by phone, email, social media or simply by visiting their website.